Famous Bengali private investigator Pradosh C. Mitter (Feluda) is hired by wealthy businessman Dinnanath Lahiri. His suitcase has been accidentally exchanged with someone on the Kalka Mail. Inside it is a valuable manuscript written by Shambucharan Bose. The case takes Feluda, Topshe and Jatayu to Shimla, where they discover a priceless diamond in a film container, disguised as a betel - nut. 'The Three Musketeers' face great danger in Shimla, before Feluda eventually solves the case.

Satyaprakash Ghosh, an idealistic village schoolmaster, protests against Raghav Choudhury's efforts to win an election campaign that is taking place in Shimulpur High School where he teaches at and gets murdered for it. Can Karna and Colonel Vikram Sinha avenge the former's father?

Rajani is a well-known prostitute in a small town in Bengal, India, living in a brothel with her teenage daughter, Lati. With few options for a better life, Rajani hopes to arrange a marriage for her daughter with a wealthy local businessman - an idea Lati opposes. Choosing a life of unpredictability and the possibility of education over the known fate of arranged marriage, Lati takes off for Calcutta, encountering several quirky characters along the way.

Based on Sarat Chandra Chattopadhyay's classic 'Datta', Banamali proposes his daughter Bijoya's hand to his childhood friend's son, Narendra. But, Bijoya is attracted to Bilas and has always been skeptical about Narendra. However, when Bijoya meets Narendra, her feelings take a turn towards the unexpected.

Suhas brings Rakesh to Kolkata Race Course at Hastings, the largest horse race venue in India. The latter knows which horse is going to win. Based on Samaresh Majumdar's first novel.

A young woman sets out to find the truth behind her mother's death after she receives a letter from her father, 16 years after his execution for her murder, claiming he was framed.

Family tension runs high when four grown siblings reunite at their elderly mother’s home. When the mother reveals that she might sell off the estate, the announcement stirs up painful memories and uncovers a long-buried secret.

Makhan, an ordinary man, climbs the ladder and becomes a big businessman after losing his mundane job. However, his happiness is short-lived when his greed compels him to do something drastic. Based on a story by Manik Bandyopadhyay.

A woman tries to uncover the mystery behind a series of mysterious packages from an anonymous sender that threaten her marriage.

Feluda and his cousin Topshe goes to Lucknow with Topshe's father to spend the Puja vacation. They arrived at the house of Dhirendra Kumar Sanyal, a friend of Topshe's father. That evening Dr. Shrivastav also came to Dhirendra Kumar Sanyal and tells him about last night, a thief tried to steal his 'Ring of Aurangzeb' (The Emperor's Ring) which was given to him by Pyarilaal Seth. After the incident Dr. Shrivastav has been afraid and asks Dhirendra Kumar Sanyal to keep the ring safe. Dhirendra Kumar Sanyal agreed and keeps the ring to his home. But someday the ring goes missing from there. Then Feluda and Topshe started investigation for the culprit. Meanwhile, Feluda meets an interesting person in doctor's neighborhood, Mr. Bonobihari Sarkar. Bonobihari babu has ferocious and poisonous creatures like crocodile, African tiger, hyena, rattlesnake, scorpion and black widow spider in his own home.